Transcript for 10 Year Old Sarah Murnaghan Gets an Adult Lung Transplant

Now to a triumph for an american family who refused to take no for an answer. A 10-year-old girl named sarah needed a new life saving set of lungs but the fine print of the donor rules stood in her way. An outpouring of support changed the story and we have the latest tonight. Reporter: Sarah murnaghan is a ten-year-old girl who can breathe easier tonight. Right now we have a chance, a hope. Reporter: She was dying of cystic foe broesz and needed a new set of lungs, a rare commodity for kids because of their size. Children under 12 have to wait for lungs from her kids. That's why the u.S. Requires all available adult lungs to be offered to adults first. Madam sect, I would urge you this week to allow the lung transplant to move forward. Reporter: The murnaghan's fought for sarah all the way to washington. Unfortunately there are about 40 very seriously ill pennsylvanians over the age of 12 also waiting for a lung transplant. Reporter: Finally last week a federal judge ordered she be placed on the adult list, a we want judges making medical decisions anymore than we want doctors decided supreme court cases. Whoa! Reporter: Today sarah got her lungs. My hope is she accomplishes all those little things that ten years old should accomplish. Reporter: For one little girl a second chance. David wright abc news los angeles.

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